#233D84#233D84

#233D84 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.3% C 0.124 H 265.7°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#233D84
RGB	rgb(35, 61, 132)
HSL	hsl(224, 58%, 33%)
HSV	hsv(224, 73%, 52%)
CMYK	cmyk(73.5%, 53.8%, 0%, 48.2%)
CIE-LAB	lab(27.74, 16.21, -42.86)
CIE-LCH	lch(27.74, 45.83, 290.72°)
OKLab	oklab(38.29% -0.0093 -0.1232)
OKLCH	oklch(38.29% 0.124 265.7)
XYZ	xyz(6.5253, 5.3601, 22.5160)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D84 #846A23

analogous

#236D84 #233D84 #3A2384

triadic

#233D84 #84233D #3D8423

tetradic

#233D84 #84236D #846A23 #23843A

square

#233D84 #84236D #846A23 #23843A

split-complementary

#233D84 #843A23 #6D8423

monochromatic

#091023 #162754 #233D84 #3053B4 #5173D1

Accessibility & contrast

On white

10.13

#233D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#233D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D84

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D84	#FFFFFF	#000000	##FFFFFF
##233D84	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4687

Deuteranopia (green-blind)

#003D83

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233d84;
/* rgb */ color: rgb(35, 61, 132);
/* oklch */ color: oklch(38.3% 0.124 265.7);

Tailwind

colors: {
  custom: {
    50: '#6c72a8',
    500: '#233d84',
    950: '#000000',
  },
}

SCSS

$custom: #233d84;
$custom-light: #6c72a8;
$custom-dark: #000000;

JSON

{
  "hex": "#233d84",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 132
  },
  "hsl": {
    "h": 223.918,
    "s": 58.084,
    "l": 32.745
  },
  "oklch": {
    "l": 0.38287,
    "c": 0.1236,
    "h": 265.7
  },
  "luminance": 0.05361
}

Semantic roles & 50–950 ramp

primary

#233D84

secondary

#B4994E

accent

#B846E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #233D84

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →